Based on 2764 and 54 real audits
| Metric | Google Tag Manager | OpenResty | Winner |
|---|---|---|---|
| Performance | 41 | 49 | OpenResty |
| Accessibility | 88 | 84 | Google Tag Manager |
| Best Practices | 87 | 87 | Tie |
| SEO | 91 | 90 | Google Tag Manager |
| Security | 66 | 68 | OpenResty |
| TTFB | 403ms | 506ms | Google Tag Manager |
| Composite | 74 | 73 | Google Tag Manager |
Google Tag Manager outperforms OpenResty in 4 of 7 categories, with a stronger composite score (74 vs 73). OpenResty leads in performance, security.
Choose Google Tag Manager when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Choose OpenResty when your primary concern is performance and security. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 2764 audited Google Tag Manager sites and 54 audited OpenResty sites in the BeaverCheck database. Every audit runs the same 100+ checks — Lighthouse performance, security headers, accessibility, SEO, server response time — against a real URL. No vendor input, no sponsorship, no affiliate links. Read the full methodology →
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